London copper pared early losses on Tuesday, as expectations grew that China would have to boost stimulus to shore up its economy after data showed a slowdown in factory activity last month, Reuters reported. China’s manufacturing activity shrank for the seventh month in a row and more sharply than expected in February, an official survey showed. Three-month copper on the London Metal Exchange was trading down 0.1% at $4,690 a ton, paring more than 1% losses from earlier in the day. Prices, little changed on Monday, hit a 3-1/2 month top of $4,771 last week.